Machinery's Handbook, 31st Edition
ALUMINUM AND Aluminum Alloys 531 -T42: Applies to products solution heat treated and naturally aged that attain mechanical properties different from those of the -T4 temper. -T62: Applies to products solution heat treated and artificially aged that attain mechani cal properties different from those of the -T6 temper. Aluminum Alloy Designation Systems.— Aluminum casting alloys are listed in many specifications of various standardizing agencies. The numbering systems used by each differ and do not always correlate. Casting alloys are available from producers who use a commercial numbering system; this system is used in the tables of aluminum casting alloys given in this section. Table 6a lists the nominal composition of commonly used aluminum casting alloys, and Table 6b and Table 6c list the typical tensile properties of separately cast bars. Table 6a. Nominal Compositions (in percent) of Common Aluminum Casting Alloys (AA/ANSI )
Others Each Total
Alloy
Si
Fe
Cu
Mn
Mg
Cr
Ni
Zn
Ti
0.15-0.35 0.05 b 0.10
201.0 S 0.10 204.0 S&P 0.20 222.0 S&P 2.0 242.0 S&P 0.7
0.15 4.0-5.2 0.20-0.50 0.15-0.55
0.35 4.2-5.0
0.10 0.15-0.35
0.05 0.10 0.15-0.30 0.05 c 0.15
208.0 S&P 2.5-3.5 1.2 3.5-4.5
0.50
0.10
0.35 1.0 0.50 0.8
0.25 0.25
0.50 0.35
1.5 9.2-10.7 0.50 0.15-0.35
1.0 3.5-4.5
0.35 0.35 0.50 0.50
1.2-1.8
0.25 1.7-2.3 0.35
0.25 0.05 0.15 0.25 0.05 0.15
295.0 S 0.7-1.5 1.0 4.0-5.0 308.0 P 5.0-6.0 1.0 4.0-5.0 319.0 S&P 5.5-6.5 1.0 3.0-4.0 332.0 P 8.5-10.5 1.2 2.0-4.0 333.0 P 8.0-10.0 1.0 3.0-4.0 355.0 S&P 4.5-5.5 0.6 d C355.0 S&P 4.5-5.5 0.20 1.0-1.5
0.03 0.10 0.10
0.35 1.0
0.25 0.25 0.25 0.25 0.25
0.50 0.50 0.50 0.50 0.50
0.35 1.0 0.25 1.5 0.50 1.0 0.50 1.0 2.0-3.0 0.35
328.0 S 7.5-8.5 1.0 1.0-2.0 0.20-0.6 0.20-0.6 0.35
0.50 0.50-1.5 0.50 0.05-0.50
336.0 P 11.0-13.0 1.2 0.50-1.5 0.35
0.7-1.3
0.25 0.05
1.0-1.5 0.50 d
0.40-0.6 0.25
0.35 0.10 0.35 0.10 0.05 0.50 0.35 0.10 0.35 0.15 0.15
0.25 0.05 0.15 0.20 0.05 0.15 0.25 0.05 0.15 0.20 0.05 0.15 0.20 0.05 0.15 0.25 0.05 0.15 0.20 0.05 0.15 0.25 0.05 0.15 0.25 0.05 0.15 0.25 0.05 0.15 0.25 0.35
0.10 0.40-0.6
356.0 S&P 6.5-7.5 0.6 d 356.0 S&P 6.5-7.5 0.20 357.0 S&P 6.5-7.5 0.15 A357.0 S&P 6.5-7.5 0.20 443.0 S&P 4.5-6.0 0.8 B443.0 S&P 4.5-6.0 0.8 A444.0 P 6.5-7.5 0.20 512.0 S 1.4-2.2 0.6
0.25 0.20 0.05 0.20 0.6 0.15 0.10 0.35 0.10 0.15 0.25
0.20-0.45
0.35 d
0.10 0.25-0.45 0.03 0.45-0.6 0.10 0.40-0.7
0.10 0.04-0.20 0.05 0.15 e
0.50 0.35 0.10 0.8 0.30 0.35
0.05 0.05 0.05
0.25
3.5-4.5 3.5-4.5 3.5-4.5
0.25
513.0 P 0.30 514.0 S 0.35 520.0 S 0.25 705.0 S&P 0.20 707.0 S&P 0.20 710.0 S 0.15 712.0 S 0.30 850.0 S&P 0.7
0.40 0.50 0.30 0.8 0.8
1.4-2.2 0.20 0.05 0.15
0.15 9.5-10.6
0.20 0.40-0.6 1.4-1.8 0.20-0.40 0.20 0.40-0.6 1.8-2.4 0.20-0.40
2.7-3.3 0.25 0.05 0.15 4.0-4.5 0.25 0.05 0.15 6.0-7.0 0.25 0.05 0.15 6.0-7.0 0.20 0.05 0.15 5.0-6.5 0.15-0.25 0.05 0.20
0.50 0.35-0.65 0.05
0.6-0.8
711.0 P 0.30 0.7-1.4 0.35-0.65 0.05 0.25-0.45
0.50
0.25
0.10 0.50-0.65 0.40-0.6
0.7 0.7-1.3
0.10 0.10
0.10 0.10
0.7-1.3 0.3-0.7
0.20 __ f 0.20 __ f
0.30
851.0 S&P 2.0-3.0 0.7 0.7-1.3 0.30 a S = sand cast; P = permanent mold cast. The sum of those “Others,” metallic elements 0.010 percent or more each, is expressed to the second decimal before determining the sum. Source: Standards for Aluminum Sand and Permanent Mold Castings, courtesy of the Aluminum Association. b Also contains 0.40–1.0 percent silver. c Also contains 0.05 max. percent tin. d If iron exceeds 0.45 percent, manganese content should not be less than one-half the iron content. e Also contains 0.04–0.07 percent beryllium. f Also contains 5.5–7.0 percent tin.
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